LOCKET NECKLACE / OPAL FLOWER

This is a locket pendant that I purchased in the United States.
It has a floral design with an opal in the center.

[Chain length] 52cm
[Top size] Length 2.8 x Width 2.8 cm x Thickness 4 mm
[Chain material] 14KGF
[Stone material] Opal/Crystal [Era] 1800-1920s